clan-cli: write some unit tests

pkgs/clan-cli/tests/test_clan_admin.py

@@ -0,0 +1,17 @@
+import argparse
+
+import clan_admin
+
+
+def test_make_parser():
+    parser = argparse.ArgumentParser()
+    clan_admin.make_parser(parser)
+
+# using fp fixture from pytest-subprocess
+def test_create(fp):
+    cmd = ["nix", "flake", "init", "-t", fp.any()]
+    fp.register(cmd)
+    args = argparse.Namespace(folder="./my-clan")
+    clan_admin.create(args)
+    assert fp.call_count(cmd) == 1
+

pkgs/clan-cli/tests/test_cli.py

@@ -1,16 +1,19 @@
 import sys
 
-import my_tool
+import pytest
+
+import clan
 
 
 def test_no_args(capsys):
-    my_tool.my_cli()
+    clan.clan()
     captured = capsys.readouterr()
     assert captured.out.startswith("usage:")
 
 
-def test_version(capsys, monkeypatch):
-    monkeypatch.setattr(sys, "argv", ["", "--version"])
-    my_tool.my_cli()
+def test_help(capsys, monkeypatch):
+    monkeypatch.setattr(sys, "argv", ["", "--help"])
+    with pytest.raises(SystemExit):
+        clan.clan()
     captured = capsys.readouterr()
-    assert captured.out.startswith("Version:")
+    assert captured.out.startswith("usage:")